Heating apparatus



(No Model.)

H. J. WATTLES. HEATING APPARATUS.

No.'493,537'. Patented Mar. 14. 1893.

INVENTOR www Xwes` WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

HIRAM J. WATTLES, OF SYRACUSE, NEW YORK.

HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 493,537, dated March 14, 1893. Application filed October 28, 1892. Serial No. 450,277. (No model.)

To @ZZ whom it may concern:

Be it known that I, I-IIRAM J. WATTLES, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Heating Apparatus, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to heating apparatus and my object is to produce an improved hot air or hot water heater, or steam producer, comprising a fire-box and combustion chamber, and indirect smoke-Hue, an air or water chamber within or substantially inclosed by said ue, and a water, air or steam chamber exterior to and substantially inclosing said iiue, and connected to the inner air or water chamber.

My invention consists in the several novel features of construction and operation hereinafter described and which are specifically set forth in the claims hereunto annexed. It is constructed as follows, reference being had to the accompanying drawings, in which Figure l, is a side elevation of the boiler. Fig. 2, is a longitudinal vertical section thereof. Fig. 3, is a transverse Vertical section thereof, on line se x, Fig. 2.

A-, is the boiler.

B-, is the re-pot and combustion chamber having an arching and rearwardly inclined crown-sheet --c-, a rear bridge-wall h-, a grate -c-, an ash-pit -d-, and a feed-door-e-andan ashpitdoor-c. The crown sheet is extended downward and meets the bottom plate -hand the vertical wall -hand the top --h-, said crown-sheet and its extension -a-, said bottom-plate, end plate and top being all connected together and together forming the inner air, or water chamber -D-` and its front extension -kover the crown-sheet.

The bridge-wall -bextends down to the bottom -mof the boiler, and in conjunction wit-h the crown-sheet extension, the plate -7i-, the walls -hand ni/ the top -7z.- and the plate mexterior thereto constitute the indirect draft iue --rwhich discharges into the stack -rsaid flue being open all over the top of the chamber -D- permitting the products of combustion to How all over said top above the plate lt An outer casing extends over the boiler and down over the sides of the chamber -D- exterior to the flue -rand it may or maynot, as desired, extend down over the rear end of the boiler.

An inlet pipe wadmits air or water into the chamber -D- and -wis the eduction pipe therefrom, or the connection between the chamber -D- and the air or water chamber -S- between the flue -rand the casing, and -'wis the eduction pipe therefrom, it being also an extension of the eduction pipe -w.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a heater, the combination, with the combustion chamber, the indirect iue leading therefrom to the stack, of an air or water chamber substantially inclosed Within said flue, an outer casing creating an air or water chamber exterior to said fine, an induction pipe leading to the inner chamber, and eduction pipes from said air or water chambers.

2. In a heater, the combination, with the combustion chamber, the crown-sheet, and the indirect iiue leading from said chamber to the stack, of an air or Water chamber, partially inclosed within said flue and extending forward over said crown-sheet, an outer casing creating an air or water chamber exterior to said fine, an induction pipe leading to said inner chamber, and eduction pipes leading from said air and water chambers.

3. In a heater, the combination, with the combustion chamber, the crown-sheet, and the indirect iiue leading from said chamber to the stack, of an air or water chamber partially inclosed within said ilue, an outer casing extending over the top and rear and creating an air or water chamber over and in rear and exterior to said flue, and induction and eduction pipes to and from said air or water chambers.

4. In a heater, the combination, with the combustion chamber, the crown-sheet, and the indirect Hue leading from said chamber to the In Witness whereof have `hereunto set my hand this 26th day of October, 1892.

I-HRAM J. WATTILES.

In presence of C. W. SMITH, HOWARD P. DENISON. 

